Modelling of Nonthermal Microwave Emission from Twisted Magnetic Loops

I. N. Sharykin, A. A. Kuznetsov

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Microwave gyrosynchrotron radio emission generated by nonthermal electrons in twisted magnetic loops is modelled using the recently developed simulation tool GX Simulator. We consider isotropic and anisotropic pitch-angle distributions. The main scope of the work is to understand the impact of a twisted magnetic field topology on radio emission maps. We have found that nonthermal electrons inside twisted magnetic loops produce gyrosynchrotron radio emission with a particular polarisation distribution. The polarisation sign inversion line is inclined relatively to the axis of the loop. The radio emission source is more compact in the case of a less twisted loop, assuming an anisotropic pitch-angle distribution of nonthermal electrons.

Original languageEnglish (US)
Pages (from-to)1341-1355
Number of pages15
JournalSolar Physics
Volume291
Issue number5
DOIs
StatePublished - May 1 2016
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • Energetic particles
  • Flares
  • Radio
  • X-rays

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